In May, Hill told Jimmy Fallon that he had shed 20kg thanks to a gruelling workout regime that had been spurred on by some sage advice from a close friend.

"I gained weight for this movie War Dogs, and then I wanted to get in better shape, so I called Channing Tatum and said, 'Hey, if I ate less and go to a trainer, will I get in better shape?'" he explained.

"And he said, 'Yes, you dumb mother f*cker, of course you will, it's the simplest thing in the entire world.'"